Electric Mid&Hi Fired Ceramics
Potters & Sculptors - Making Rock from Mud
140427 b firing May 17
Comment
-
Comment by Norm Stuart on May 20, 2014 at 1:41am
-
The increased area of crystallized matte area is typical of what I've seen with some glazes when we added a 6 hour slow-cool between 982C and 815C, the crystal forming temperature zone.
For the glazes so affected I could cool the kiln faster to minimize the areas of crystallization, but I have instead adjusted these glaze recipe by adding 10% to 20% of a highly fluxed frit with a high ratio of silica.
I've had the most success with Fluorine containing frits like Ferro Frit 3269 or 5301.
http://digitalfire.com/4sight/material/ferro_frit_3269_371.html
http://digitalfire.com/4sight/material/ferro_frit_5301_468.html
Ferro Frit 3134, a clear boron, calcium, sodium frit without alumina can also be used, but the resulting glaze often still displays increased crystallization.
http://digitalfire.com/4sight/material/ferro_frit_3134_351.html
-
Comment by Daniel Spruyt on May 20, 2014 at 12:04am
-
Hi Norm,
This was not well done. The glaze thickness was not equal all over, from where the strong matte patch. It is a glaze with potential if evenly applied (green glass area with dots of crystals)
-
-
Daniel - The areas of "green glass" and "crystallized tan matte" developed by chance or applied by design through thickness or different additions?
Videos
Use These Links to Support Us
Low cost flat lapping disc can be used on you potters wheel if you, drill bat pin holes in it, and provide a trickle of water to cool it. At amazon.com, 120 grit for aggressive material removal. Click the image to purchase
Members have had great things to say about John Britt's new book, Mid-Range Glazes. Click the image to buy from Amazon.com
Purchase Glazes Cone 6 by Michael Bailey, The Potters Book of Glaze Recipes by Emmanuel Cooper, or Making Marks by Robin Hopper, all available at amazon.com. Mastering Cone 6 Glazes by John Hesselberth & Ron Roy is now out of print.
Harbor Freight is a great place to find unbeatable prices for better HVLP spray guns with stainless steel parts and serviceable economy models, as well as detail guns, all tested by our members for spraying glazes, as well as compressors to power the guns. As yet no one has tested and commented on the remarkably inexpensive air brushes at harbor freight.
The critter siphon gun is a spray alternative that is well liked by some of our members, and is available at amazon.
Amazon is also a competitive source for photo light tents for shooting professional quality pictures of your work. They also have the EZ Cube brand favored by several of our members. You might also want to purchase the book Photographing Arts, Crafts and Collectibles . . .
If you are up to creating videos of your work or techniques you might want to invest in a flip video camera
Following are a few scales useful for potters. Ohaus Triple Pro Mechanical Triple Beam Balance, 2610g x 0.1g, with Tare $169.00
And finally a low cost clone of the OHaus. The Adam Equipment TBB2610T Triple Beam Mechanical Balance With Tare Beam $99.62
ebay is a great alternative for many tools and the equipment used in the ceramics studio - kilns, wheels, extruders, slab rollers are often listed there both new and used.
Tips for Members
If you just want to spout off, it is best accomplished as a blog posting. If you want to get more guidance and ideas from other members, ask a question as a new discussion topic. In the upper right corner of the lists for both types of posting, you will find an "+Add " button. Clicking it will open an editor where you create your posting. 4/16/2014
© 2024 Created by Andrea Wolf.
Powered by
You need to be a member of Electric Mid&Hi Fired Ceramics to add comments!
Join Electric Mid&Hi Fired Ceramics